Like Tetris? With a little bit of awkward iOS app work, you can get it for free on your iOS device. You won't find it for free in the App Store proper on your iPhone or iPad; instead, you'll have to head to to the Apple Store app and download it from there.

This one's for the baby boomers: Centipede has returned, and if you played it as a kid you’ll feel right at home with this updated iOS edition. Like the 1980’s Atari arcade classic, the object in Centipede: Origins is to clear the screen of insects and arachnids of various types, which are trying to encroach on your territory by moving in various patterns down the game screen. However, the developers have modernized this version a bit, making it more accessible for casually paced play while adding a basic leveling system for weapons and power-ups.

Remember this “blast from the past” in the image above? The classic MacPaint application launched with the original Macintosh computer back in 1984 is now part of history, and to assure its legacy, Apple has donated the source code for the application to the Computer History Museum.